
/*
 * Copyright (C) Yichun Zhang (agentzh)
 */


#ifndef _DDEBUG_H_INCLUDED_
#define _DDEBUG_H_INCLUDED_


#include <ngx_config.h>
#include <nginx.h>
#include <ngx_core.h>


#if defined(DDEBUG) && (DDEBUG)

#if (NGX_HAVE_VARIADIC_MACROS)

#define dd(...)                                \
    fprintf(stderr, "lua *** %s: ", __func__); \
    fprintf(stderr, __VA_ARGS__);              \
    fprintf(stderr, " at %s line %d.\n", __FILE__, __LINE__)

#else

#include <stdarg.h>
#include <stdio.h>

#include <stdarg.h>

static ngx_inline void
dd(const char *fmt, ...)
{
}

#endif

#else

#if (NGX_HAVE_VARIADIC_MACROS)

#define dd(...)

#else

#include <stdarg.h>

static ngx_inline void
dd(const char *fmt, ...)
{
}

#endif

#endif

#if defined(DDEBUG) && (DDEBUG)

#define dd_check_read_event_handler(r)                           \
    dd("r->read_event_handler = %s",                             \
       r->read_event_handler == ngx_http_block_reading           \
           ? "ngx_http_block_reading"                            \
       : r->read_event_handler == ngx_http_test_reading          \
           ? "ngx_http_test_reading"                             \
       : r->read_event_handler == ngx_http_request_empty_handler \
           ? "ngx_http_request_empty_handler"                    \
           : "UNKNOWN")

#define dd_check_write_event_handler(r)                                \
    dd("r->write_event_handler = %s",                                  \
       r->write_event_handler == ngx_http_handler ? "ngx_http_handler" \
       : r->write_event_handler == ngx_http_core_run_phases            \
           ? "ngx_http_core_run_phases"                                \
       : r->write_event_handler == ngx_http_request_empty_handler      \
           ? "ngx_http_request_empty_handler"                          \
           : "UNKNOWN")

#else

#define dd_check_read_event_handler(r)
#define dd_check_write_event_handler(r)

#endif


#endif /* _DDEBUG_H_INCLUDED_ */

/* vi:set ft=c ts=4 sw=4 et fdm=marker: */
